CHUCKLES: Will Smith laughs it up when asked about the trailer controversy in SoHo yesterday.Gregory P. Mango

TRUCK IT! Will Smith’s mega-trailer, which was exposed by The Post, gets hauled away from a SoHo curbside and backed discreetly into a nearby parking lot yesterday. (Gregory P. Mango(3))

He may be the Fresh Prince of Bel-Air, but this is Bloomberg’s kingdom.

At the command of Hizzoner — and amid intense pressure from furious residents — egomaniac actor Will Smith begrudgingly moved his starship-sized movie trailer and separate gym trailer from the heart of SoHo to a nearby private parking lot yesterday, just in time to catch the special night rate.

Smith was forced to dock his leased 53-foot double-decker — in town for his “Men in Black 3” shoot — at a “Park Fast” lot half a mile away, after The Post revealed the monstrosity was choking business revenues and filling the streets with exhaust fumes.

“He ain’t real happy,” said a source close to Smith. “It’s an inconvenience. Now he is about a mile away from set.”

Even the mayor — usually a fan of the movie industry — questioned why Smith needed the $9,000-per-week digs, dubbed “The Heat,” in such a prime location.

“Why you need a trailer that big — I didn’t know trailers came that big,” Bloomberg marveled yesterday at a question-and-answer session. “If lots of people showed up with ’em, we’d certainly have to do something.”

Now the “I Am Legend” actor will have to trek to the trailer to get his makeup done, confer with his personal writers and lounge in his marble-floored, 100-inch-screen film room — or walk less than a mile to his own $25,000-a-month Bond Street apartment.

His sour mood was a 180-degree turn from earlier in the day, when The Post confronted him and he belly-laughed at the controversy.

He couldn’t control his giggles when asked why he needed such a big ride — and whether he thought the whole situation was a big joke.

“It’s hilarious,” he said.

City officials insisted that the trailer fiasco is no laughing matter.

“To balance the interests of the production and the neighborhood, we have instructed ‘Men in Black 3’ to relocate the trailer to a private lot,” read a statement from Mayor’s Office of Film, Theater and Broadcasting.

And two City Council members have already proposed legislation regulating the size of film-production vehicles. Currently, there are no limits.

“Hardworking New Yorkers have a right to wake up in the morning and not find a cruise ship parked out in front of their house,” said Public Safety Committee Chair Peter Vallone Jr. “This is New York, not Hollywood. We don’t roll that way.”

Margaret Chin, the councilwoman representing SoHo, also blasted Smith: “This is ridiculous. This is abuse. If we don’t do something, the next one will be even bigger.”

She suggested new regulations that would force film crews to get permits — at an increased cost — for oversize trailers like Smith’s.

Attendants at the lot had to shuffle numerous cars to make room for the 22-wheel trailer, which — with private security in tow — traveled the wrong way up two streets to its destination. The star’s mobile personal gym soon followed.

The only good news for Smith yesterday was that the lot, at Dominick Street between Hudson and Varick, gave him a sweet rate — $10.14 plus tax.

While the mayor insisted yesterday that the city’s 311 hot line received no complaints about the trailer, officials at 311 told The Post it received at least 10 calls Tuesday from residents complaining about movies filming in the city — at least double the daily norm.

Calls about film crews are passed along to the Mayor’s Office of Film, Theater and Broadcasting, which refers them to the project’s production office.

An administration source said the “Men in Black” production office had informed city officials that Smith’s trailer received “numerous” complaints Tuesday.

“This trailer has been used many times in this city by different studios on various movies over the years, and while its use has never been an issue before, we regret any inconvenience it may have caused,” said a Columbia Pictures senior vice president, Steve Elzer.

“We appreciate the continued support we have received from the community,” he said.